For many people, summer means it’s time for a road trip! One popular destination is Grand Canyon National Park in Arizona. Every year, about 6 million visitors head there to explore one of the world’s largest canyons. It could hold water from 1.7 billion Olympic-sized swimming pools!
The Grand Canyon has long fascinated scientists. By studying its rocks, geologists have uncovered details about Earth’s history. “There’s no place in the world like it,” says geologist Wayne Ranney.
Here are five amazing facts about the Grand Canyon.